Picked up a Multiplus 2 48/3000/35 a few months back and I've been pretty happy with it overall, but I keep getting nuisance overload trips when the kettle and microwave kick in at the same time. Both are fairly standard — a 3kW kettle and a 700W microwave — so on paper I'm well within the 3000VA continuous rating. The trip happens almost instantly, usually within a second or two of both being on.
I've had a poke around in VictronConnect and my overload trip point is set at the default, which I believe is around 4500W peak for a short burst. What's throwing me is that the combined load shouldn't be anywhere near that, even accounting for the kettle's inrush. I've also got a 560Ah lithium bank through a Daly 200A BMS, so I don't think it's the battery side throttling things.
Wondering if anyone's seen similar behaviour or knows whether there's a firmware quirk at play. I'm on firmware v497 at the moment. Could it be a power factor issue with the microwave causing the inverter to see a higher apparent load than the actual wattage suggests? I know microwaves can be a bit odd in that regard but I've never dug into the numbers properly.